The following features require in the microcontroller
Flash memory size 4k max
Data RAM size 256 bytes
EEPROM size 64 bytes
Two 16-bits timers
I2C protocol supported
External clock supported
20 GPIO
If third timer can operate on 32 768 KHz External crystal then it is more preferable
which have this feature
no issue with SOP OR TSSOP 28 etc
Welcome, @jayden cai, to the community!
For example, you can use the STM8S003K3, but you can also choose other devices from the STM8 portfolio if you have additional requirements.
However, I would like to draw your attention to the fact that all STM8 have been set to NRND (Not Recommended for New Design) and will only be manufactured until 2032.
An alternative could be the Cortex-M0+ devices STM32L010F4 or STM32L010K4 (same device, just different package), which operate at 1.8-3.6V and also have 5V tolerant GPIOs (when operated as open drain without pull resistors).
Hope that helps?
Regards
/Peter
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